[Invest-forum] Erosivity units are incorrect for sample data

noreply at ecoinformatics.org noreply at ecoinformatics.org
Tue Feb 15 15:25:04 PST 2011


Erosivity units are incorrect for sample data

http://invest.ecoinformatics.org/discuss/tier-1-sediment-retention/479064604/229780461

    Hi, all - Thanks to the astute eye of one of our users, we have found
   that the units on the erosivity layer that is packed with the InVEST
   sample data are incorrect. The units are (100
   ft.tonf.in/(acre.hr.yr)), which are standard US units, when they need
   to be in metric for our tools: MJ-mm / ha-h-y. If you want to convert
   the layer you already have, multiply it by 17.02. I have also put an
   updated version here: Erosivity for Willamette sample data (metric) .
   The units on the US erosivity map that is also available on that page
   are correct. ~ Stacie



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